Lei Tao, Xu Da-chuan, Gao Jian-hua
Department of Plastic Surgery, Nanfang Hospital, First Military Medical University, Guangzhou 510515, China.
Di Yi Jun Yi Da Xue Xue Bao. 2003 Aug;23(8):847-8, 851.
To investigate the anatomical distribution of the zygomatic branch of the facial nerve and discuss its clinical significance in the rhytidectomy.
The distribution of the zygomatic branch of the facial nerve was observed on 30 halves of the fifteen candaveric specimens (10 antiseptic cadaveric specimens and 5 fresh cadavers).
The zygomatic branch made its way through the upper or the anterior border of the parotid gland, giving rise to 2 or 3 rami, which could be divided into the superior and the inferior rami. The superior rami, which were thin and superficial, crossed the zygomatic arch at its inner one-third or ran along the inferior margin of the zygomatic arch, and then entered beneath the zygomatic ligaments. The inferior rami were comparatively thick and deep, lying 1.0+/-0.3 cm inferior to the superior rami. The inferior and superior rami joined each other on the surface and deep side of the zygomatic major muscle.
In the prevention of the zygomatic branch damage in rhytidectomy, the areas where caution should taken were the anterior border of the zygomatic major muscle in sub-SMAS dissection and the zygomatic arch in the subperiosteal dissection. The sharp dissection and excess tension should be avoided to reduce the nerve injury.
研究面神经颧支的解剖分布，并探讨其在除皱术中的临床意义。
在15具尸体的30侧标本（10具防腐尸体标本和5具新鲜尸体）上观察面神经颧支的分布。
颧支经腮腺上缘或前缘穿出，发出2～3支分支，可分为上支和下支。上支较细且表浅，于颧弓内1/3处跨过颧弓或沿颧弓下缘走行，然后进入颧韧带下方。下支较粗且深，位于上支下方1.0±0.3cm处。上、下支在颧大肌的浅面和深面相互连接。
在除皱术中预防颧支损伤时，应注意在SMAS下分离时颧大肌前缘区域以及骨膜下分离时颧弓区域。应避免锐性分离和过度牵拉，以减少神经损伤。
